<template>
  <transition name="slide-up">
    <div class="setting-wrapper" v-show="menuVisible && settingVisible === 1">
      <div class="setting-theme">
        <div
          class="setting-theme-item"
          v-for="(item, index) in themeList"
          :key="index"
          @click="setTheme(index)"
        >
          <div
            class="preview"
            :class="{ selected: item.name === defaultTheme }"
            :style="{ background: item.style.body.background }"
          ></div>
          <div class="text" :class="{ selected: item.name === defaultTheme }">
            {{ item.alias }}
          </div>
        </div>
      </div>
    </div>
  </transition>
</template>

<script>
  import { saveTheme } from '../../utils/localStorage'
  import { ebookMixin } from '../../utils/mixin'

  export default {
    mixins: [ebookMixin],
    methods: {
      setTheme(index) {
        const theme = this.themeList[index]
        this.setDefaultTheme(theme.name).then(() => {
          this.currentBook.rendition.themes.select(this.defaultTheme)
          this.initGlobalStyle()
        })
        saveTheme(this.fileName, theme.name) // 缓存主题
      }
    }
  }
</script>

<style lang="scss" rel="stylesheet/scss" scoped>
  @import '../../assets/styles/global.scss';
  .setting-wrapper {
    position: absolute;
    bottom: px2rem(48);
    left: 0;
    z-index: 190;
    width: 100%;
    height: px2rem(90);
    box-shadow: 0 px2rem(-8) px2rem(8) rgba(0, 0, 0, 0.15);
    .setting-theme {
      height: 100%;
      display: flex;
      .setting-theme-item {
        flex: 1;
        display: flex;
        flex-direction: column;
        padding: px2rem(5);
        box-sizing: border-box;
        .preview {
          flex: 1;
          border: px2rem(1) solid #ccc;
          box-sizing: border-box;
          border: none;
          &.selected {
            box-shadow: 0 px2rem(4) px2rem(6) 0 rgba(0, 0, 0, 0.1);
            border: px2rem(2) solid #5e6369;
          }
        }
        .text {
          flex: 0 0 px2rem(20);
          font-size: px2rem(14);
          @include center;
        }
      }
    }
  }
</style>
